20363198 has 12 divisors (see below), whose sum is σ = 31017840. Its totient is φ = 10024716.

The previous prime is 20363197. The next prime is 20363251. The reversal of 20363198 is 89136302.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20363197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56543 + ... + 56901.

It is an arithmetic number, because the mean of its divisors is an integer number (2584820).

Almost surely, 2^20363198 is an apocalyptic number.

20363198 is a deficient number, since it is larger than the sum of its proper divisors (10654642).

20363198 is an frugal number, since it uses more digits than its factorization.

20363198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 20363198 is about 4512.5600273016. The cubic root of 20363198 is about 273.0750329342.

The spelling of 20363198 in words is "twenty million, three hundred sixty-three thousand, one hundred ninety-eight".